motors on which end of screw

[deannos]

Not in the least, whatever fits best.
Direction can be changed in software but it does pay to get the main load / thrust bearing assembly at the motor end, support bearing at trailing end.

Thanks for this John

I dont think it would make any difference to the operation of the screw, but are the ends of the screw not machined differently? One end should be machined to fit a bearing block and the other would be to fit the motor. I would say that the end with the longer machined down section would be for the motor.

Ian

The ends are machined differently, but i would turn the screw with motor mounted round